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Journal articles on the topic 'Extraction efficieny'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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1

Rajesh, Nimmakayala, and Pal Dharm. "Equilibrium studies of aconitic acid extraction using tri-n-octyl amine (TOA) as extractant." Journal of Indian Chemical Society Vol. 97, Jul 2020 (2020): 1014–20. https://doi.org/10.5281/zenodo.5667727.

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Department of Chemical Engineering, National Institute of Technology Raipur, Raipur-492 010, Chhattisgarh, India <em>E-mail</em>: nimmakayalas819@gmail.com <em>Manuscript received online 30 March 2020, accepted 01 June 2020</em> Conventionally, aconitic acid (AA) is extracted from natural resources like molasses (sugar cane), red beet etc. However, to met the ever increasing demand of AA for use in biopolymer, surfactants and in drugs, an alternative way is needed which is economical as well as eco-friendly. Fermentation is an alternative route for the production of AA to meet industrial deman

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Lickfeldt, D. W., N. E. Hofmann, J. D. Jones, A. M. Hamblin, and T. B. Voigt. "Comparing Three DNA Extraction Procedures for Cost, Efficiency, and DNA Yield." HortScience 37, no. 5 (2002): 822–25. http://dx.doi.org/10.21273/hortsci.37.5.822.

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An efficient deoxyribonucleic acid (DNA) extraction procedure that yields large quantities of DNA would provide adequate DNA for a large number of different analytical procedures. This study was conducted to compare three DNA extraction procedures for cost, time efficiency, and DNA content while extracting DNA from Kentucky bluegrass (Poa pratensis L.). Three students at the Univ. of Illinois with varying levels of DNA extraction experience conducted DNA extractions using Plant DNeasy™ Mini Kits, Plant DNAzol® Reagent, and a PEX/CTAB buffer. Costs varied significantly with cost (US$) per DNA s

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Leon-Salazar, Ruben, Guilherme Janson, José Fernando Castanha Henriques, and Vladimir Leon-Salazar. "Influence of initial occlusal severity on time and efficiency of Class I malocclusion treatment carried out with and without premolar extractions." Dental Press Journal of Orthodontics 19, no. 4 (2014): 38–49. http://dx.doi.org/10.1590/2176-9451.19.4.038-049.oar.

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INTRODUCTION: The aim of this retrospective study was to compare the occlusal outcomes, duration and efficiency of Class I malocclusion treatment carried out with and without premolar extractions in patients with different degrees of initial malocclusion severity. METHODS: Complete records of 111 patients were obtained and divided into two groups: Group 1 consisted of 65 patients at an initial mean age of 13.82 years old treated with four premolar extractions; whereas Group 2 consisted of 46 patients at an initial mean age of 14.01 years old treated without extractions. Two subgroups were obta

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Ballistreri, Gabriele, Margherita Amenta, Simona Fabroni, Nicolina Timpanaro, and Giusy Maria Platania. "Sustainable Extraction Protocols for the Recovery of Bioactive Compounds from By-Products of Pomegranate Fruit Processing." Foods 13, no. 12 (2024): 1793. http://dx.doi.org/10.3390/foods13121793.

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This study investigates sustainable extraction protocols for the recovery of bioactive compounds from by-products of various pomegranate (Punica granatum L.) cultivars, including Acco, Hicaz, Jolly Red, Parfianka, Valenciana, and Wonderful, generated during the industrial processing of the fruits. Advanced extraction technologies, including ultrasounds, microwaves, and hydrodynamic cavitation, have been compared to conventional extraction procedures and utilized to enhance extraction efficiency while also minimizing environmental impact. Water-based extraction methods have been utilized to pro

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Marić, Aleksandar, Pavle Jovanov, Marijana Sakač, Bojana Radić, Branislava Đermanović, and Slobodan Gadžurić. "Extraction of thiacloprid from honey using aqueous biphasic systems based on potassium phosphate and ionic liquids." Food and Feed Research, no. 00 (2024): 53. http://dx.doi.org/10.5937/ffr0-53222.

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Thiacloprid, a widely used neonicotinoid pesticide, poses a significant health risk when present in honey. Conventional extraction techniques are often complex and time-consuming, highlighting the need for more efficient methods. This study investigated the application of aqueous biphasic systems (ABS) based on ionic liquids (ILs) in combination with the kosmotropic salt potassium phosphate (K₃PO₄) for extracting thiacloprid from honey, intending to enhance extraction efficiency and simplify the process. Two commercially available ionic liquids, 1-butyl3-methylimidazolium chloride ([C4mim][Cl]

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He, Wen, Jie Liu, Jiajun Shen, Fei Du, and Anping Yu. "Extraction of Polysaccharides from Shiitake Mushroom Based on Pineapple Enzymatic Technology." Journal of Physics: Conference Series 2679, no. 1 (2024): 012029. http://dx.doi.org/10.1088/1742-6596/2679/1/012029.

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Abstract The pineapple enzymatic technique was used to extract polysaccharides from shiitake mushrooms, with glucose serving as the standard for calculating the yield of the polysaccharides. The effects of acidity, alkalinity, extraction time, extraction temperature, enzyme dosage, and number of extractions on the extraction rate of mushroom polysaccharides were investigated under the control of a single factor. Orthogonal tests showed that the optimal process combination for the extraction of mushroom polysaccharides under the influence of multiple factors was pH 5, an extraction time of 1.5

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Fatur, Karsten, Matjaž Ravnikar, Vitjan Fras, and Samo Kreft. "Pipes and Potions: Testing the Efficacy of European Folk Preparation Methods for Anticholinergic Solanaceae Plants." Plants 11, no. 1 (2022): 126. http://dx.doi.org/10.3390/plants11010126.

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The present article sought to evaluate the efficiency of various folk preparation methods commonly used in Europe for employing anticholinergic Solanaceae plants. The study aimed to uncover which folk methods were effective for the extraction of the anticholinergic tropane alkaloids of these plants, atropine and scopolamine. The folk extractions that were tested sought to simulate the preparation of teas, cold-water infusions, unguents, tinctures, fortified wines, and smoking. All preparation types and a control were then put through an extraction process to see what amount of the alkaloids ha

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Chanthai, Saksit, Sujitra Prachakoll, Chalerm Ruangviriyachai, and Devanand L. Luthria. "Influence of Extraction Methodologies on the Analysis of Five Major Volatile Aromatic Compounds of Citronella Grass (Cymbopogon nardus) and Lemongrass (Cymbopogon citratus) Grown in Thailand." Journal of AOAC INTERNATIONAL 95, no. 3 (2012): 763–72. http://dx.doi.org/10.5740/jaoacint.11-335.

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Abstract This paper deals with the systematic comparison of extraction of major volatile aromatic compounds (VACs) of citronella grass and lemongrass by classical microhydrodistillation (MHD), as well as modern accelerated solvent extraction (ASE). Sixteen VACs were identified by GC/MS. GC-flame ionization detection was used for the quantification of five VACs (citronellal, citronellol, geraniol, citral, and eugenol) to compare the extraction efficiency of the two different methods. Linear range, LOD, and LOQ were calculated for the five VACs. Intraday and interday precisions for the analysis

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Oliveira, Rosilene Dos Santos, Juliana Da Silva Rocha, Keren Hapuque Pinheiro, Matheus Mendonça Pereira, and Carlos Eduardo Barão. "Application of an ultrasound process to extract catechins from green tea wastes." Brazilian Journal of Food Research 7, no. 3 (2016): 29. http://dx.doi.org/10.3895/rebrapa.v7n3.3724.

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There is increasing need for industries to develop innovative technologies that in addition to being low cost, are also fast and provide high yields and efficiency, while at the same time avoiding adverse effects in the environment. One technique that conforms to these requirements is the use of ultrasound, which also offers ease of application and can be used in the extraction of compounds from leaves. The aim of the present work was to evaluate the efficiency of ultrasound in extracting catechins from green tea wastes, employing solvents with different polarities: water, acetone, ethanol, me

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Semenihin, Semen, Alla Fabrickaya, Vladimir Gorodeckiy, Nailya Daisheva, Natal'ya Kotlyarevskaya, and Igor' Lyusyy. "INFLUENCE OF ENZYME COMPOSITION AND EXTRACTANT pH VALUE ON PECTIN EXTRACTION EFFICIENCY FROM BEET PULP." Bulletin of KSAU, no. 7 (January 29, 2025): 171–78. https://doi.org/10.36718/1819-4036-2023-7-171-178.

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The purpose of research is to study the effect of the composition of enzymes and the pH value of the extractant on the efficiency of extracting pectin from pressed beet pulp. Objectives: to identify the composition of enzymes that provide efficient extraction of pectin, and to determine the optimal pH value of the extractant, providing an increase in the efficiency of extracting pectin from pressed beet pulp. The objects of study are pressed beet pulp, crushed to a particle size of less than 2 mm, treated with microwave EMF at a heating rate of 0.6 °C/s until a temperature of 60 °C is reached,

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Lee, You-Rim, Jiyeong Lee, and Hee-Gyoo Kang. "Presoaking dried blood spot with water improves efficiency for small-molecule analysis." BioTechniques 67, no. 5 (2019): 219–28. http://dx.doi.org/10.2144/btn-2019-0043.

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The current method of extracting small molecules from dried blood spots (DBSs) and liquid blood is similar. However, owing to their different physical characteristics, a modification of the extraction process for DBS is required. We propose a modified method involving presoaking in water that results in better extraction efficiency for small-molecule analysis than the conventional protein precipitation method. Using blood and DBSs from eight subjects, the similarities, recovery rates and extraction efficiencies of both methods were compared. Quantitative analysis showed that seven and six out

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Shin, Yerim, Byeongryeol Ryu, Minji Kang, Minjun Kim, and Jungdae Lim. "Enhanced Extraction of Tanshinones from Salvia miltiorrhiza Using Natural-Surfactant-Based Cloud Point Extraction." Processes 12, no. 10 (2024): 2227. http://dx.doi.org/10.3390/pr12102227.

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Salvia miltiorrhiza (SM) contains the tanshinones, a compound with various pharmacological effects, and has been extensively studied as a pharmaceutical material. However, conventional methods for extracting tanshinones face challenges such as environmental hazards and high cost. In this study, we aimed to effectively extract tanshinones from SM using cloud point extraction (CPE) with lecithin, a natural surfactant. By optimizing various extraction conditions including the solid-to-liquid ratio, lecithin concentration, NaCl concentration, pH, and equilibrium temperature, the optimal extraction

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Tran, Chi Hai, Minh Tri Nghiem, Anh Minh Trinh Dinh, et al. "Optimization Conditions of Ultrasound-Assisted Extraction for Phenolic Compounds and Antioxidant Activity from Rubus alceifolius Poir Leaves." International Journal of Food Science 2023 (October 10, 2023): 1–12. http://dx.doi.org/10.1155/2023/7576179.

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Rubus alceifolius Poir (R.A. Poir) leaves are rich in phenolic compounds, offering many health benefits due to their incredible antioxidant potential. In this study, conditions for the ultrasound-assisted extraction (UAE) of phenolic compounds and antioxidant activity from R.A. Poir leaves were optimized using response surface methodology (RSM). This methodology assessed the effects of ultrasound power ( X 1 : 100-500 W), extraction temperature ( X 2 : 30-60°C), and extraction time ( X 3 : 5-55 min). The optimized UAE conditions were then compared with conventional extraction methods (Soxhlet

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Ouyang, Wenjun, and Jiang Tao. "Er: YAG Laser Minimally Invasive Tooth Extraction." Dental Hypotheses 15, no. 4 (2024): 71–73. https://doi.org/10.4103/denthyp.denthyp_71_24.

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Introduction: Er: YAG laser has characteristics such as efficient cutting, promoting healing, controlling inflammation, and reducing pain, making it widely used in the resection of oral soft and hard tissue. The Hypothesis: Conventional tooth extraction may result in alveolar bone resorption, infection, bleeding, and pain. Most minimally invasive extraction methods aim to sever the periodontal ligament while reducing lateral pressure. The Er: YAG laser can remove oral soft and hard tissues with minimal heat-induced damage. Therefore, we propose the hypothesis that using the Er: YAG laser to as

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Takahashi, Eri, Jérôme Ledauphin, Didier Goux, and Francis Orvain. "Optimising extraction of extracellular polymeric substances (EPS) from benthic diatoms: comparison of the efficiency of six EPS extraction methods." Marine and Freshwater Research 60, no. 12 (2009): 1201. http://dx.doi.org/10.1071/mf08258.

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There is no universal method that can be applied to extract bound extracellular polymeric substances (EPS) from benthic diatoms of intertidal sediments without causing cell lysis. Six extraction methods were tested on a diatom culture of Navicula jeffreyi to establish the best compromise between high yields of carbohydrate extraction and minimum cell lysis. Extraction with distilled water provoked cell lysis (as already known). The five other extraction methods (dowex resin, artificial seawater of half salinity and extractions after pretreatment with gluteraldehyde by three methods: water, dow

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Frioui, Mohamed, Getnet Yimer, Mark Shamtsyan, et al. "Isolation of bioactive beta-glucans from mycelium of <i>Pleurotus ostreatus</i> mushroom." Bioactive Compounds in Health and Disease - Online ISSN: 2574-0334; Print ISSN: 2769-2426 7, no. 12 (2024): 649–58. https://doi.org/10.31989/bchd.v7i12.1511.

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Background: Beta-glucan, a compound found in higher fungi, possesses significant properties important for the human body, including immunomodulatory effects. Developing efficient extraction technology is crucial to ensure a high yield of beta-glucan component while preserving its bioactive properties. Context and purpose of this study: This study aimed to evaluate the extraction efficiency of beta-glucans from Pleurotus ostreatus mycelium powder using microwave-assisted extraction and to compare its performance with traditional extraction methods—specifically water and ethyl alcohol-based extr

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Mettel, Carsten, Yongkyu Kim, Pravin Malla Shrestha, and Werner Liesack. "Extraction of mRNA from Soil." Applied and Environmental Microbiology 76, no. 17 (2010): 5995–6000. http://dx.doi.org/10.1128/aem.03047-09.

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ABSTRACT Here, we report an efficient method for extracting high-quality mRNA from soil. Key steps in the isolation of total RNA were low-pH extraction (pH 5.0) and Q-Sepharose chromatography. The removal efficiency of humic acids was 94 to 98% for all soils tested. To enrich mRNA, subtractive hybridization of rRNA was most efficient. Subtractive hybridization may be followed by exonuclease treatment if the focus is on the analysis of unprocessed mRNA. The total extraction method can be completed within 8 h, resulting in enriched mRNA ranging from 200 bp to 4 kb in size.

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Zhao, Fujunzhu, Zhiwu Wang, and Haibo Huang. "Physical Cell Disruption Technologies for Intracellular Compound Extraction from Microorganisms." Processes 12, no. 10 (2024): 2059. http://dx.doi.org/10.3390/pr12102059.

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This review focuses on the physical disruption techniques in extracting intracellular compounds, a critical step that significantly impacts yield and purity. Traditional chemical extraction methods, though long-established, face challenges related to cost and environmental sustainability. In response to these limitations, this paper highlights the growing shift towards physical disruption methods—high-pressure homogenization, ultrasonication, milling, and pulsed electric fields—as promising alternatives. These methods are applicable across various cell types, including bacteria, yeast, and alg

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NSANGOU, ABDOURAMANE, DOINA SIBIESCU, PIERRE MARCEL ANICET NOAH, et al. "Benchmarking on Aloe vera Gel Extraction." Buletinul Institutului Politehnic din Iași, Secția Chimie și Inginerie Chimică 69, no. 1 (2023): 83–91. https://doi.org/10.5281/zenodo.7767181.

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<em>Aloe vera</em> gel is composed of more than 70% saccharide and polysaccharides is the transparent mucilage contained in the parenchymal cells of the fresh <em>Aloe vera</em> leaf. This study objective was to produce a comparison of a set of extraction methods of <em>Aloe vera</em> in the literature. The methodology used is the synthesis of a set of scientific articles, theses, dissertations dealing with the issue of <em>Aloe vera</em> gel extraction. The databases used are (Science Direct, Google Scholar, and ResearchGate). This work studied 6 types of extractions (traditional extraction,

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Husna, N. E., E. Noor, F. Fahma, and T. C. Sunarti. "Optimization of ultrasound-assisted extraction of amla (Emblica officinalis) fruit using response surface methodology and identification of phenolic compounds." Food Research 8, no. 6 (2024): 257–70. https://doi.org/10.26656/fr.2017.8(6).589.

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Amla (Emblica officinalis) fruit is rich in phenolic compounds and has antioxidant activity which is beneficial to health. The phenolic compounds of amla fruit were extracted using ultrasound-assisted extraction (UAE) method. This study aimed to optimize the extraction conditions (ethanol concentration: 48.8-91.2% and extraction time: 2.9-17.1 min) using response surface methodology to maximize the total phenolic content and antioxidant activity of amla fruit extract. Extractions at optimum conditions were compared with conventional extractions (maceration and reflux). In addition, this study

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Wang, Ya Qi, Zhen Feng Wu, Ji Ping Lan, and Ming Yang. "Vacuum Assisted Extraction of Indirubin from Radix isatidis through Orthogonal Test Method." Advanced Materials Research 941-944 (June 2014): 1174–77. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.1174.

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A new vacuum assisted extraction (VAE) method was established and applied for the extraction of indirubin from Radix Isatidis. The major factors of VAE process such as boiling temperature, ethanol level, extraction time and extraction cycles, which have influence on the extraction yield of indirubin were tested by an orthogonal array L9 (34).The results show that the optimum extraction conditions are ethanol level 40% (v/v), boiling temperature 60 °C, extraction time 3 h and extraction 3 cycles. Under these conditions the extraction efficiency of indirubin reaches 1.091 mg/g, which is 30% high

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Babu, Dr B. Sarath, and Seerla Venkata Priyanka. "Kinetic Study on Propionic using Alamine 336 in Petroleum Ether by Reactive Extraction." Indian Journal of Petroleum Engineering 2, no. 2 (2022): 1–6. http://dx.doi.org/10.54105/ijpe.f7449.112222.

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The growing demand for the production of propionic acid as it useful in chemical industry, pharmaceutical industry, preservations, drug delivery towards a more economical energy efficient technology. Reactive extraction is used over conventional method as conventional methods i.e., fermentation broth is expensive as well as unfriendly towards the environment. A specific extractant and various diluents are used in reactive extraction which gives us a promising technique for the acid extraction. Alamine 336 (TOA) was used with a combination of petroleum ether by varying concentrations. Physical

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Jegal, Jonghwan, Eun Ju Jeong, and Min Hye Yang. "A Review of the Different Methods Applied in Ginsenoside Extraction From Panax ginseng and Panax quinquefolius Roots." Natural Product Communications 14, no. 9 (2019): 1934578X1986839. http://dx.doi.org/10.1177/1934578x19868393.

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Ginseng saponins, also called ginsenosides, are the main active ingredients of Panax ginseng and Panax quinquefolius and are often used as qualitative and quantitative markers in the regulation of ginseng products. Various methods have been used to extract the major ginsenosides, such as ginsenosides Rb1, Rb2, Rc, Rd, and Rf from P. ginseng and P. quinquefolius. The objective of this paper is to review the studies regarding the influence of different extraction systems on ginsenoside amount and pattern in P. ginseng and P. quinquefolius roots. Although traditional extraction methods, Soxhlet a

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Fang, Hai-Yan, Ying-Qin Wei, Meng-Li Zhang, and Wei Liu. "A Novel Green Extraction Technique for Extracting Flavonoids from Folium nelumbinis by Changing Osmosis Pressure." Materials 13, no. 18 (2020): 4192. http://dx.doi.org/10.3390/ma13184192.

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A new green and sustainable extraction technique, namely osmosis extraction (OE), was developed for efficient extracting flavonoids from Folium nelumbinis by changing the osmotic pressure. The antioxidant activities of the extracted flavonoids were also evaluated. Ethanol and ammonium sulfate were selected for the OE system because they are environmentally friendly. The maximum flavonoids concentration in the top phase was obtained with an ethanol volume fraction of 42.0% and the salt mass of 1.9 g. The kinetic behavior of the extraction process showed that OE had higher efficiencies especiall

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Khalaf, Ali Hussein, Emad Kadhim Atiyah, Lamia Abdultef Risan Al-Iessa, and Mustafa Abdulkadhim Hussein. "Vortex-Assisted Liquid-Liquid Extraction: An Innovative Approach for Copper Separation." Methods and Objects of Chemical Analysis 20, no. 1 (2025): 59–64. https://doi.org/10.17721/moca.2025.59-64.

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This study introduces an innovative, highly sensitive, and precise liquid-liquid extraction method based on the vortex phenomenon. A specialized extraction system was developed, incorporating two key components: a magnetic stirrer to generate the vortex and a pump to transfer the organic layer from the liquid-liquid system. The method’s efficiency was evaluated using dithizone (0.01M) dissolved in CCl4 and an aqueous Cu(II) chloride solution (1000 ppm), with key variables systematically investigated to optimize extraction performance. The optimal conditions for extracting Cu(II) from a 10 mL a

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Cheng, Shouyun, Kaavya Rathnakumar, and Sergio I. Martínez-Monteagudo. "Extraction of Dairy Phospholipids Using Switchable Solvents: A Feasibility Study." Foods 8, no. 7 (2019): 265. http://dx.doi.org/10.3390/foods8070265.

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A tertiary amine (N,N-dimethylcyclohexylamine, CyNMe2) was used as a switchable hydrophilicity solvent (SHS) for extracting phospholipids (PLs) from raw cream (RC), buttermilk (BM), concentrated buttermilk (CBM), and beta-serum (BS). The SHS extractions were performed with varying solvent–sample weight ratio at room temperature. The extracted PLs using CyNMe2 were recovered by bubbling CO2 at atmospheric pressure, switching the CyNMe2 into its respective salt. For comparison, the PLs were also extracted using Folch (FE) and Mojonnier (ME) extraction. The extraction efficiency of SHS varied fro

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Nguyen, V. P. Thinh, Jon D. Stewart, Florent Allais, and Irina Ioannou. "Optimization of the Recovery of Secondary Metabolites from Defatted Brassica carinata Meal and Its Effects on the Extractability and Functional Properties of Proteins." Foods 11, no. 3 (2022): 429. http://dx.doi.org/10.3390/foods11030429.

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The sustainable extraction of secondary metabolites from Brassica agro-industrial by-products often involves the use of high concentrations of ethanol, and/or high temperatures, which tends to decrease the efficiency of protein extraction (yield, profile, etc.). To understand the limits of the combination of these two extraction processes, aqueous ethanol extraction of secondary metabolites (e.g., phenolic compounds and glucosinolates) from Brassica carinata defatted meal was optimized using Response Surface Methodology. The validated models predicted that aqueous ethanol extraction of defatte

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Bao, Huiwei, Yang Xu, Yuejie Wang, et al. "Optimization of Extraction Process of Methyl Eugenol and Asarinin in Asarum with Deep Eutectic Solvent Based on the Response Surface Methodology." Journal of Chemistry 2021 (September 16, 2021): 1–11. http://dx.doi.org/10.1155/2021/2069986.

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To explore a green and efficient extraction technology for the extraction of active ingredients of Asarum, the deep eutectic solvent combined with ultrasonic was applied to compare the extraction efficiency of 10 kinds of deep eutectic solvents, taking the extraction rate of methyl eugenol and asarinin as indices. Single-factor experiments were adopted to investigate the influence of molar ratio, liquid-to-solid ratio, eddy time, ultrasonic time, and temperature of the deep eutectic solvent on the extraction rate of methyl eugenol and asarinin. Based on single-factor experiments, the surface r

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Kaur, Pushpinder, Abha Chaudhary, Bikram Singh, and Gopichand. "An Efficient Microwave Assisted Extraction of Phenolic Compounds and Antioxidant Potential of Ginkgo biloba#." Natural Product Communications 7, no. 2 (2012): 1934578X1200700. http://dx.doi.org/10.1177/1934578x1200700222.

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Flavonoid glycosides are a significant group of compounds found in Ginkgo biloba leaves, but the long extraction procedures in existing methods are a challenging problem. In this work, a microwave-assisted extraction (MAE) method has been developed for extracting bioactive compounds from G. biloba. Several variables were optimized, such as extracting solvent, microwave power, and extraction time that can potentially affect the extraction yield. The total phenolic content, antioxidant activity (using DPPH, ABTS and FRAP assays) and flavonoid glycosides of different extracts using RP-HPLC were a

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Rodrigues do Nascimento Silva, Nara Rubia, Rodrigo Barbosa Monteiro Cavalcante, Rafael Cosme Machado, and Flávio Alves da Silva. "Ultrasound-assisted extraction of phenolic compounds from jambolan (Syzygium cumini) and jabuticaba (Myrciaria jabuticaba) pulps." Interfaces Científicas - Saúde e Ambiente 9, no. 2 (2023): 617–34. http://dx.doi.org/10.17564/2316-3798.2023v9n2p617-634.

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Several variables influence the extraction of phenolic compounds, encompassing factors such as the choice of solvent, agitation, extraction duration, solute-solvent ratio, temperature, and mass transfer efficiency. Technological tools, including ultrasound, microwave, and centrifuge, offer avenues for enhancing efficiency, economizing time and resources, and augmenting yield. This study seeks to establish a standardized approach for extracting phenolic compounds from jambolan and jabuticaba pulps. The extraction protocol entailed the introduction of the designated solvent to the sample, follow

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Borts, B., S. Ivanova, I. Koliabina, G. Lysychenko, and V. Tkachenko. "Supercritical Extraction by Carbon Dioxide of Uranium from Ore Concentrates and Low-Enriched Ores of Tailing." Nuclear and Radiation Safety, no. 2(70) (May 20, 2016): 56–60. http://dx.doi.org/10.32918/nrs.2016.2(70).12.

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The extraction and processing of uranium ores in Ukraine have led to the accumulation of large amounts of waste. It is obvious that the old technologies are not applicable to the extraction of uranium from such waste. Therefore, the search for the new, more efficient methods of extracting residual amounts of waste nutrients and subsequent improvement of the environmental status of contaminated areas are both necessary. The supercritical carbon dioxide fluid extraction (SFE-CO2) is proposed as a method that can be utilized independently or as the last step of the acid leaching method adopted at

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NAKAMURA, Katsunori, and Fumiki TAKAHASHI. "Simple Small Apparatus for Extracting Nematodes and Extraction Efficiency." Japanese journal of applied entomology and zoology 38, no. 4 (1994): 295–97. http://dx.doi.org/10.1303/jjaez.38.295.

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King, Jerry W., Marvin L. Hopper, Ronald G. Luchtefeld, Scott L. Taylor, and William L. Orton. "Optimization of Experimental Conditions for the Supercritical Carbon Dioxide Extraction of Pesticide Residues from Grains." Journal of AOAC INTERNATIONAL 76, no. 4 (1993): 857–64. http://dx.doi.org/10.1093/jaoac/76.4.857.

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Abstract The efficiency of a supercritical carbon dioxide extraction system was investigated for the extraction at different pressures and temperatures of fortified grain samples containing organochlorine, organophosphorus, and organonitrogen pesticides from grain matrixes. The extractor unit was constructed using a gas booster pump and a Florisil sorbent trap for extracting and isolating the residues of interest. Using 20 g samples, extractions were performed between 40° and 80° C with pressures from 2000 to 10 000 psig. In most cases, pesticide recoveries exceeding 80% were recorded over the

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Luong Le Uyen Trang, Pham Van Tan, Nguyen Tra My, et al. "OPTIMIZATION OF DAPHNORETIN EXTRACTION FROM WIKSTROEMIA INDICA (L.) C.A.MEY TWIGS AND LEAVES USING RESPONSE SURFACE METHODOLOGY." Tạp chí Dược liệu 30, no. 3 (2025): 179–84. https://doi.org/10.63240/jmm-nimm.2025.3.132.

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This study developed an optimized process for extracting and preparing a daphnoretin-rich extract from Wikstroemia indica (L.) C.A.Mey twigs and leaves using the One-Factor-At-A-Time (OFAT) method combined with Response Surface Methodology (RSM). Extraction was performed by simple soaking at room temperature. The optimal conditions were as follows: 1-2 mm material size, single extraction, 80% ethanol as the solvent, 26-hour extraction time, and a solvent-to-material ratio of 12:1. At a batch scale of 1 kg, the optimized process yielded an extract containing 2.481% daphnoretin with an extractio

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Dr., B.Sarath Babu, and Venkata Priyanka Seerla. "Kinetic Study on Propionic using Alamine 336 in Petroleum Ether by Reactive Extraction." Indian Journal of Petroleum Engineering (IJPE) 2, no. 2 (2022): 1–6. https://doi.org/10.54105/ijpe.F7449.112222.

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<strong>Abstract: </strong>The growing demand for the production of propionic acid as it useful in chemical industry, pharmaceutical industry, preservations, drug delivery towards a more economical energy efficient technology. Reactive extraction is used over conventional method as conventional methods i.e., fermentation broth is expensive as well as unfriendly towards the environment. A specific extractant and various diluents are used in reactive extraction which gives us a promising technique for the acid extraction. Alamine 336 (TOA) was used with a combination of petroleum ether by varyin

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Ye, Xu, Chao-Hui Wang, and Shao-Wen Wei. "Extracting spinning wormhole energy via Comisso-Asenjo process." Journal of Cosmology and Astroparticle Physics 2023, no. 12 (2023): 030. http://dx.doi.org/10.1088/1475-7516/2023/12/030.

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Abstract Recently, Comisso and Asenjo demonstrated that rapid magnetic reconnection is a promising approach to extract spinning black hole energy. In this paper, we focus on extracting spinning wormhole energy via such mechanism. The study shows that it is indeed possible to extract rotating energy from a spinning wormhole with small regularization parameter ℓ of the central singularity. The efficiency and power of the energy extraction are also evaluated. Quite different from the Kerr black hole, the spin of the wormhole can take arbitrarily large value. However, the increase in wormhole spin

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Doerr, S. H., C. T. Llewellyn, P. Douglas, et al. "Extraction of compounds associated with water repellency in sandy soils of different origin." Soil Research 43, no. 3 (2005): 225. http://dx.doi.org/10.1071/sr04091.

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After an initial evaluation of several solvents, the efficiency of Soxhlet extractions with isopropanol/ammonia (s.g. 0.88) (70 : 30 v : v; 24 h) in extracting compounds associated with water repellency in sandy soils was examined using a range of repellent and wettable control soils (n = 15 and 4) from Australia, Greece, Portugal, The Netherlands, and the UK. Extraction efficiency and the role of the extracts in causing soil water repellency was examined by determining extract mass, sample organic carbon content and water repellency (after drying at 20°C and 105°C) pre- and post-extraction, a

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Marimpoong, Monalyn A., and Emma K. Sales. "Evaluation of USM Biotech DNA extraction method for selected agricultural crops in comparison with existing methods." Evaluation of USM Biotech DNA extraction method for selected agricultural crops in comparison with existing methods 1, no. 1 (2019): 31–38. https://doi.org/10.5281/zenodo.8245205.

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Different DNA extraction protocols have been used in plant DNA extraction. However, no comparative analysis has been done to determine their efficiency, cost effectiveness and time requirement for the extraction. Three (3) established protocols and the USM Biotech modified protocols were used in this study. It aimed to evaluate the efficiency of the four DNA extraction protocols in terms of DNA yield, purity and processing time; to determine and compare the cost of sample analysis per protocol and to assess which protocol is universally applicable in extracting DNA of selected agricultural cro

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Vlachoudi, Despoina, Theodoros Chatzimitakos, Vassilis Athanasiadis, Eleni Bozinou, and Stavros I. Lalas. "Enhanced Extraction of Carotenoids from Tomato Industry Waste Using Menthol/Fatty Acid Deep Eutectic Solvent." Waste 1, no. 4 (2023): 977–92. http://dx.doi.org/10.3390/waste1040056.

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This study aimed to explore the efficiency of hydrophobic deep eutectic solvents (HDESs) composed of menthol and fatty acids for extracting carotenoids from tomato by-products. A selection of nine different HDESs and fatty acid mixtures were prepared and evaluated for their carotenoid extraction potential. The highest extraction yield was obtained with menthol/hexanoic acid 2:1 (94.5 ± 3.3 μg CtE/g dm), demonstrating the influence of the specific composition of DES components on extraction efficiency. An optimization process employing a Box–Behnken design was conducted to identify the optimal

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Sellers, Graham S., Cristina Di Muri, Africa Gómez, and Bernd Hänfling. "Mu-DNA: a modular universal DNA extraction method adaptable for a wide range of sample types." Metabarcoding and Metagenomics 2 (July 5, 2018): e24556. http://dx.doi.org/10.3897/mbmg.2.24556.

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Efficient DNA extraction is fundamental to molecular studies. However, commercial kits are expensive when a large number of samples need to be processed. Here we present a simple, modular and adaptable DNA extraction ‘toolkit’ for the isolation of high purity DNA from multiple sample types (modular universal DNA extraction method or Mu-DNA). We compare the performance of our method to that of widely used commercial kits across a range of soil, stool, tissue and water samples. Mu-DNA produced DNA extractions of similar or higher yield and purity to that of the commercial kits. As a proof of pri

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Sellers, Graham S., Muri Cristina Di, Africa Gómez, and Bernd Hänfling. "Mu-DNA: a modular universal DNA extraction method adaptable for a wide range of sample types." Metabarcoding and Metagenomics 2 (July 5, 2018): e24556. https://doi.org/10.3897/mbmg.2.24556.

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Efficient DNA extraction is fundamental to molecular studies. However, commercial kits are expensive when a large number of samples need to be processed. Here we present a simple, modular and adaptable DNA extraction 'toolkit' for the isolation of high purity DNA from multiple sample types (modular universal DNA extraction method or Mu-DNA). We compare the performance of our method to that of widely used commercial kits across a range of soil, stool, tissue and water samples. Mu-DNA produced DNA extractions of similar or higher yield and purity to that of the commercial kits. As a proof of pri

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Azeredo, Joana, Valentina Lazarova, and Rosário Oliveira. "Methods to extract the exopolymeric matrix from biofilms: a comparative study." Water Science and Technology 39, no. 7 (1999): 243–50. http://dx.doi.org/10.2166/wst.1999.0365.

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To study the composition of a biofilm a previous extraction method is required to separate cells from the matrix. There are several methods reported in the literature; however they are not efficient or promote leakage of intracellular material. In this work several extraction methods were assayed in mixed culture and pure culture biofilms and their efficiency was evaluated by the amount of organic carbon, proteins and intracellular material extracted. The results showed that the extraction with glutaraldehyde 3% (w/v) was the most suitable method, extracting great amounts of organic carbon wit

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Nisbet, Lorna A., Fiona M. Wylie, and Karen S. Scott. "Applications of Sample Preparation Techniques in the Analysis of New Psychoactive Substances." Separations 11, no. 9 (2024): 258. http://dx.doi.org/10.3390/separations11090258.

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The global rise of new psychoactive substances (NPSs) poses challenges for their analysis in biological matrices due to their complex chemistries and short market lifespan. A comparative study for the simultaneous extraction, separation, and detection of 19 NPSs was conducted. Six solid-phase extraction (SPE) methods and one supported liquid extraction method (SLE) were compared for the extraction of analytes from blood, serum, plasma, and urine. Comparisons of four derivatization agents were conducted, at four temperatures and two incubation times. Extraction methods were assessed by precisio

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Hao, Changchun, Hongjin Qu, Shi Chen, Wenjing Han, and Runguang Sun. "Ultrasound-assisted Extraction of Polysaccharide from Radix Bupleuri using Response Surface Methodology and Antioxidant Research of the Polysaccharide." Natural Product Communications 13, no. 4 (2018): 1934578X1801300. http://dx.doi.org/10.1177/1934578x1801300420.

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This report used Response Surface Methodology (RSM) to analyze the conditions that extracting polysaccharide compound from Radix Bupleuri using ultrasonic wave. For determining the optimal extraction conditions, four independent variables, temperature (°C), ultrasonic intensity (UI, W/cm2), dilution rate (water-material ratio, mL/g) and time (min), were investigated using Box-Behnken design. In the results, the best condition after optimization was dilution rate of 35.0:1, UI of 24.5 W/cm2, temperature of 69.5°C and time of 14.6 min. Extraction efficiency was 7.67% and the purity reached 44.14

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Pang, Yunxuan, Junchuan Yu, Laidian Xi, et al. "Remote Sensing Extraction of Lakes on the Tibetan Plateau Based on the Google Earth Engine and Deep Learning." Remote Sensing 16, no. 3 (2024): 583. http://dx.doi.org/10.3390/rs16030583.

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Lakes are an important component of global water resources. In order to achieve accurate lake extractions on a large scale, this study takes the Tibetan Plateau as the study area and proposes an Automated Lake Extraction Workflow (ALEW) based on the Google Earth Engine (GEE) and deep learning in response to the problems of a low lake identification accuracy and low efficiency in complex situations. It involves pre-processing massive images and creating a database of examples of lake extraction on the Tibetan Plateau. A lightweight convolutional neural network named LiteConvNet is constructed t

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C, Manjunatha Swamy, and Dr S. Meenakshi Sundaram. "A Survey of Bio Inspired Algorithms for Web Information Extraction and Optimization for Big Data Analytics." International Journal of Engineering and Advanced Technology 10, no. 2 (2020): 56–60. http://dx.doi.org/10.35940/ijeat.b2011.1210220.

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Information extraction is systematic process of extracting structured information from documents which has both unstructured and semi structured data set. Data available over the web is unstructured which is processed and delivered that may be challenging due to massive data over web. Bigdata analytics approach is used in the computation field where massive data is managed and processed as information. Data from various sources like industries, institutes are processed using algorithms in efficient means employing web of things or Internet of things used to mine such a large data. Bio inspired

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Manjunatha, Swamy C., and Meenakshi Sundaram S. "A Survey of Bio Inspired Algorithms for Web Information Extraction and Optimization for Big Data Analytics." International Journal of Engineering and Advanced Technology (IJEAT) 10, no. 2 (2020): 56–58. https://doi.org/10.35940/ijeat.B2011.1210220.

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Information extraction is systematic process of extracting structured information from documents which has both unstructured and semi structured data set. Data available over the web is unstructured which is processed and delivered that may be challenging due to massive data over web. Bigdata analytics approach is used in the computation field where massive data is managed and processed as information. Data from various sources like industries, institutes are processed using algorithms in efficient means employing web of things or Internet of things used to mine such a large data. Bio inspired

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Bulgariu, Laura, and Dumitru Bulgariu. "Cd(II) extraction in PEG(1550)-(NH4)2SO4 aqueous two-phase systems using halide extractants." Journal of the Serbian Chemical Society 73, no. 3 (2008): 341–50. http://dx.doi.org/10.2298/jsc0803341b.

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The extraction of Cd(II) was studied in an aqueous PEG-(NH4)2SO4 two-phase system, formed from a water-soluble polymer (poly(ethylene glycol), PEG) and an inorganic salt ((NH4)2SO4), in the presence of halide ions. In the absence of a suitable extracting agent, Cd(II) remains predominantly in the salt-rich phase of the extraction system. By addition of halide ions as extractants, Cd(II) is extracted into the PEG-rich phase due to the formation of cadmium halide species. The efficiency of the extractants increased in the order: Cl- < Br- < I-. From the distribution coefficients determined

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SONG Limei, 宋丽梅, 佟宇 TONG Yu, 李金义 LI Jinyi та 王远航 WANG Yuanhang. "三维重建技术中的高效光条提取方法(特邀)". Infrared and Laser Engineering 53, № 9 (2024): 20240312. http://dx.doi.org/10.3788/irla20240312.

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Wang, Lirong, Fang Xu, Jiacai Wang, and Ichiro Hagiwara. "3314 Feature extraction based Efficient Iterative Closest Point Algorithm." Proceedings of Design & Systems Conference 2008.18 (2008): 573–76. http://dx.doi.org/10.1299/jsmedsd.2008.18.573.

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